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/* Copyright (C) 2001 Damir Zucic */
/*=============================================================================
draw_edit_symbol.c
Purpose:
Draw the edit symbol: squid or seahorse. The squid is drawn at
the position of the first selected atom of default macromolecular
complex. The seahorse is drawn in the middle of the first bond
from the set of bonds which have to be rotated. If editing phi
angle, the seahorse will be drawn in the middle of N-CA bond. If
editing psi, it will be drawn in the middle of CA-C bond. In all
other cases only one bond is selected for editing. The seahorse
will be drawn in the middle of this bond. There is no symbol for
default editing mode (0 = no editing).
Input:
(1) Pointer to MolComplexS structure.
(2) Number of macromolecular complexes.
(3) Pointer to RuntimeS structure.
(4) Pointer to ConfigS structure.
(5) Pointer to GUIS structure.
(6) Pointer to NearestAtomS structure.
(7) The number of pixels in the main window free area.
(8) The refreshI, used to check the NearestAtomS associated with
a given pixel.
Output:
(1) The edit symbol drawn.
(2) Return value.
Return value:
(1) Zero if editing is off.
(2) Negative if there are no atoms or no atom is selected.
(3) Positive in all other cases.
=============================================================================*/
#include <stdio.h>
#include <X11/Xlib.h>
#include <X11/Xutil.h>
#include <X11/Xos.h>
#include <X11/Xatom.h>
#include "defines.h"
#include "typedefs.h"
/*======function prototypes:=================================================*/
int DrawSquid_ (AtomS *, ConfigS *, GUIS *,
NearestAtomS *, size_t, unsigned int);
int DrawSeahorse_ (MolComplexS *, RuntimeS *, ConfigS *, GUIS *,
NearestAtomS *, size_t, unsigned int);
/*======draw edit symbol:====================================================*/
int DrawEditSymbol_ (MolComplexS *mol_complexSP, int mol_complexesN,
RuntimeS *runtimeSP, ConfigS *configSP, GUIS *guiSP,
NearestAtomS *nearest_atomSP, size_t pixelsN,
unsigned int refreshI)
{
MolComplexS *default_mol_complexSP;
size_t atomsN, atomI;
int something_is_selectedF;
static AtomS *curr_atomSP;
/* Check editing mode: */
if (runtimeSP->edit_modeI == 0) return 0;
/* Prepare the pointer to default macromolecular complex: */
default_mol_complexSP = mol_complexSP + runtimeSP->default_complexI;
/* Check are there any atoms at all: */
atomsN = default_mol_complexSP->atomsN;
if (atomsN == 0) return -1;
/* Draw the proper symbol: */
switch (runtimeSP->edit_modeI)
{
/* Draw squid if editing atom or dimensions: */
case 1:
case 101:
/* Check is there anything selected at all: */
something_is_selectedF = 0;
for (atomI = 0; atomI < atomsN; atomI++)
{
/* Pointer to the current atom: */
curr_atomSP = default_mol_complexSP->atomSP + atomI;
/* If the current atom is selected, set */
/* the flag and break from the loop: */
if (curr_atomSP->selectedF)
{
something_is_selectedF = 1;
break;
}
}
if (!something_is_selectedF) return -2;
/* Draw squid at the position of the first selected atom: */
DrawSquid_ (curr_atomSP, configSP, guiSP,
nearest_atomSP, pixelsN, refreshI);
break;
/* Editing phi, psi, omega, bond, main chain or side chain: */
case 2:
case 3:
case 4:
case 5:
case 6:
case 7:
DrawSeahorse_ (mol_complexSP, runtimeSP, configSP, guiSP,
nearest_atomSP, pixelsN, refreshI);
break;
/* Unsupported editing modes: */
default:
;
}
/* Return positive value on success: */
return 1;
}
/*===========================================================================*/
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